EXFO RTU 310-310G IP Services Test Head - Manual (Page 156)

Port Tabs
144 FTB-8500 Series and FTB-8120NGE/8130NGE
Interface Setup (Ethernet)

Flow Control
Available with Frame Analyzer, RFC 2544, and TCP Throughput stest
only. Flow control is not supported (set to None) for EtherSAM, BERT
and Smart Loopback tests. When Flow Control is enabled, the
RTU-310/310G will stop transmitting for the requested time value
specified by the valid flow control frame received. Choices are None,
Enable RX, Enable TX, and Enable RX and TX. Only None and Enable
RX are available on RTU-310G. Enable TX and Enable RX are only
available when Auto-Negotiation is disabled.
None (RTU-310): pause frame received are ignored and no pause
frame are transmitted.
Note: Flow Control should be set to None with Half Duplex mode.

Local Clock Only available for 1Gbps electrical when auto-negotiation
is disabled. Choices are Local, Remote, and Automatic. The default
setting is Automatic.